From: Leon Romanovsky <leonro@mellanox.com>
To: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Matan Barak <matanb@mellanox.com>,
Doug Ledford <dledford@redhat.com>,
Sean Hefty <sean.hefty@intel.com>,
Hal Rosenstock <hal.rosenstock@gmail.com>,
linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org
Subject: Re: [PATCH v2] IB/mlx5: fix debugfs cleanup
Date: Mon, 18 Sep 2017 14:49:05 +0300 [thread overview]
Message-ID: <20170918114905.GF5788@mtr-leonro.local> (raw)
In-Reply-To: <1505734128-21708-1-git-send-email-sudip.mukherjee@codethink.co.uk>
[-- Attachment #1: Type: text/plain, Size: 1318 bytes --]
On Mon, Sep 18, 2017 at 12:28:48PM +0100, Sudip Mukherjee wrote:
> From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
>
> If delay_drop_debugfs_init() fails in any of the operations to create
> debugfs, it is calling delay_drop_debugfs_cleanup() as part of its
> cleanup. But delay_drop_debugfs_cleanup() checks for 'dbg' and since
> we have not yet pointed 'dbg' to the debugfs we need to cleanup, the
> cleanup fails and we are left with stray debugfs elements and also a
> memory leak.
>
> Fixes: 4a5fd5d2965c ("IB/mlx5: Add necessary delay drop assignment")
> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
> ---
> drivers/infiniband/hw/mlx5/main.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
> index ab3c562..05fb4bd 100644
> --- a/drivers/infiniband/hw/mlx5/main.c
> +++ b/drivers/infiniband/hw/mlx5/main.c
> @@ -3837,11 +3837,13 @@ static int delay_drop_debugfs_init(struct mlx5_ib_dev *dev)
> if (!dbg)
> return -ENOMEM;
>
> + dev->delay_drop.dbg = dbg;
> +
> dbg->dir_debugfs =
> debugfs_create_dir("delay_drop",
> dev->mdev->priv.dbg_root);
> if (!dbg->dir_debugfs)
> - return -ENOMEM;
> + goto out_debugfs;
>
Thanks,
Acked-by: Leon Romanovsky <leonro@mellanox.com>
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
next prev parent reply other threads:[~2017-09-18 11:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-18 11:28 [PATCH v2] IB/mlx5: fix debugfs cleanup Sudip Mukherjee
2017-09-18 11:49 ` Leon Romanovsky [this message]
2017-09-22 17:18 ` Doug Ledford
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170918114905.GF5788@mtr-leonro.local \
--to=leonro@mellanox.com \
--cc=dledford@redhat.com \
--cc=hal.rosenstock@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rdma@vger.kernel.org \
--cc=matanb@mellanox.com \
--cc=sean.hefty@intel.com \
--cc=sudipm.mukherjee@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).